Ich habe ein RSA x509-Zertifikat mit Hüpfburg in Java generiert. Der Code ist unten:Casting Hüpfburg X509Certificate zu Java.security.cert.Certificate []
public static X509Certificate generateCert()
{
try
{
Security.addProvider(new BouncyCastleProvider());
// generate a key pair
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA", "BC");
KeyPair keyPair = keyPairGenerator.generateKeyPair();
// build a certificate generator
X509V3CertificateGenerator certGen = new X509V3CertificateGenerator();
X500Principal dnName = new X500Principal("cn=example");
// add some options
certGen.setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
certGen.setSubjectDN(new X509Name("dc=name"));
certGen.setIssuerDN(dnName); // use the same
// yesterday
certGen.setNotBefore(new Date(System.currentTimeMillis() - 24 * 60 * 60 * 1000));
// in 2 years
certGen.setNotAfter(new Date(System.currentTimeMillis() + 2 * 365 * 24 * 60 * 60 * 1000));
certGen.setPublicKey(keyPair.getPublic());
certGen.setSignatureAlgorithm("SHA256withRSA");
certGen.addExtension(X509Extensions.ExtendedKeyUsage, true, new ExtendedKeyUsage(KeyPurposeId.id_kp_timeStamping));
mCurrentRSAKeyPair = keyPair;
// finally, sign the certificate with the private key of the same KeyPair
X509Certificate cert = certGen.generate(keyPair.getPrivate(), "BC");
return cert;
}
catch (Exception e)
{
e.printStackTrace();
return null;
}
}
ich jedoch in der Lage sein wollen, dass die X509Cerificate zu werfen zurück in ein java.security.cert Zertifikat [] es sagt, dass sie nicht kompatibel sind. Ich brauche diesen Zertifikat-Array für einen Android Schlüsselspeicher zu verwenden:
public RSA(char[] password) throws Exception
{
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(null);
Enumeration<String> aliases = ks.aliases();
if(!aliases.hasMoreElements())
{
//mCurrentCertificate is the X509Certificate
mCurrentCertificate = generateCert();
//Store the new keypair
FileInputStream fs = null;
ks.load(fs, password);
KeyStore.ProtectionParameter protParam =
new KeyStore.PasswordProtection(password);
Object cert = mCurrentCertificate.getEncoded();
java.security.cert.Certificate[] myCert = (java.security.cert.Certificate[]) cert; //CAST HERE
KeyStore.PrivateKeyEntry pkEntry =
new KeyStore.PrivateKeyEntry(mCurrentRSAKeyPair.getPrivate(),
myCert);
ks.setEntry("UserKey", pkEntry, protParam);
}
}